Baebed fence wire



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METHOD 0E MAKING BAEEED FENCE WIEE.

No. 290,272] Patented Deo. 18,1883.

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' C'. D'.,B.OGEB.S. METHOD 0F MAKING BARBED FENCE WIRE. No. 290,272. Patented Deo.V 18, 1883.

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e. D. ROGERS- METHOD 0E MAKING BARBED FENCE WIRE.

No. 290,272. Y Patented Dee. 18,-1883.

Witnesses: A Inventor."

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i @wirr drains Parmi CHARLES D. ROGERS, OF PROVIDENCE, RHODE ISLAND.

SPECIFICATION forming part of Letters Patent No. 290,272, dated December 18, 1883.

Application led October 21, 1882. (No model.)

To all whom it may concern Be it known that I, CHARLES D. RoenRs, of Providence, in the State of Rhode Island, have invented an Improvement in the Method of Forming Barbed Wire for Fences, of which the following is a speciiication.

The smooth wire employed inthe construction of the barbed wire is of the size ordinarily used for fencing,- and the spikes or barbs are thrown or struck out therefrom by the succes sive or repeated action of dies at each place therein at which a spike or barb is required.

I have devised several ways slightly differing from each other, but of the same general character, for throwing out spikes or barbs integral with the wire by the action of dies, to some of which I shall hereinafter refer; but I iirst proceed to describe in detail a method which is illustrative of them all, and which I consider to be the most advantageous.

In the drawings I have shown both the wire at different stages of manufacture, and suitable dies in such varying positions as will illustrate their operation.

Figures 1 to 11, inclusive, are illustrative more especially of the dies, while Figs. 12 to 16, inclusive, show the wire alone at different stages of manufacture.

. It is sufficient to state at rst that Fig. 1 is a plan of the dies with the upper vertical die omitted, and that Fig. 12 is a section of plain wire.

Reference to the other gures will occur hereinafter.

It is not necessary to show mechanism for moving the dies, but F represents a portion of the frame of a machine containing them.

D Dz D3 D4 represent four dies rigidly secured to four die-holders, H H2 H3 H4, which are dovetailed, as shown, to two slides, S S2, so thatv the die-holders H and H2 have a horizontal movement to and from each other in the slide S', and the die-holders H3 and H4 ahorizontal movement to and from each other in slide S2. The slides S and S'Z are dovetailed to the frame F, so as to have a horizontal movement to and from each other at right angles to the movements of the die-holders. The dies D D2 D3 D4, accordingly, may be worked in pairs-D D2 and D3 Dt-the dies of each pair having a movement to and from each other, and each pair of dies having a movement to and from the other pair. Each die DD2D3D* in its face opposite to the other die of its .pair has two grooves, g and g2, and at the inner angle or corner of each die, at the end of the grooves g g, respectively, are countersinks c c2, a further description of which will hereinafter be given. ner view of one of said dies.)

Diand D6 are two dies having vertical movements to and from each other in the fra F, and are arranged to meet in the horizontal plane bisecting the grooves g of the dies D D2 I):s D4. The operatingfaces of thevvertical dies D5 and D6 are alike. That of D5 is shown at Fig. 1, and again partially at Fig. 2. The operating-face of the die D is shown at Fig. 11 of actual size. Each die D5 DG has across its face a groove, g3, with a countersink, c3, at the middle, as will hereinafter more fully appear. l grooves g g2 g3 is of a proper size to hold half of a section of wire of corresponding length, as shown.

The operation of the dies which have been thus described is as follows: The slides S S`l being apart, as shown at Fig. 1, and the dies of each pair D D2 and D3 D*being also apart, as there shown, the slides are brought nearly together, or to the position represented at Figs. 2 and '5, and then the dies of each pair D D2 and D3 D4 are made to approach each other and clasp or clamp the wire W, which is so presented to the said dies as to be received in the lower groove, g', as shown at Fig. 2. (See Fig. 5.) The two slides S S2 then come fully together, as shown at Figs. 3 and 6, and the metal of the wire which was between the slides is upset in the countersinks c', so thatV a iiange is formed thereon, as shown at 1o, Figs. 4 and and 13. This method of forming a iiange upon a wire by clamping it and upsetting it through linear compression is old, and my invention requires or results from a further operation or action of dies upon a ange or projection thus thrown out. For this further operation the slides S S2 are opened sufficiently to allow the vertical dies to operate between them, the dies of each slide being also sufficiently opened to slide upon the wire. (See Fig. 4.) The vertical dies D5 D6 now come together, as shown at Fig. 7, thereby breaking the liange shown at (See Fig. 10, which is a core The wire is marked W. and each of the IOO Figs. 4 and 13, and causing it to assume the shape shown in vertical and horizontal elevation at Z, Figs. 14 and 15. The vertical dies D5 DG are now withdrawn, the dies of each pair D Dl and D3 Dt opened, the slides S and S2 brought to the position shown at Figs. 2 and S, the wire removed from the lower groove, g', and so held as to be grasped in the upper groove, g2, by the dies D Dz and D3 D, which are again made to assume the position shown at Fig. 2. (See Fig. 8.) Next the slides come fully together and further upset the projections shown at Z, Figs. 14 and 15, so that they take the shape shown at t, Fig. 16. By the successive or repeated action of dies upon a projection once thrown out from the wire, the original projection is brought to a required shape in a manner analogous to the spinning of metal by the repeated action of dies or the hammering of metal to a required form by repeated blows when a single blow of the hammer will not serve the purpose. Therefore,

to form long integral spikes on a wire, the slides S S2 are brought together by gradual and repeated approach es, throwing out a little metal at a time, or throwing it alittle farther at each time, and the attempt is not made at any stage of the process to throw out the metal to a required shape at one operation.

It follows that instead of employing the seeond groove, g2, and countersink c'l in the horizontal dies D DZ D" D, substantially the same result which is obtained by the second operation of those dies when the wire is held in the grooves ,fjL may be obtained by changing the couutersinks in the vertical dies D" DG to correspond to the spike required, and then repeatedly operating the vertical dies upon the lange thrown out at the first operation of the horizontal dies when the wire was held in the grooves g. The repeated action of a single pair of dies is equivalent to the successive operation of two or more pairs of dies.

It is obvious that the projection thrown out by the operation of the irst pair of dies may be other than a ange entirely surrounding the wire.

I claim* rlhe herein-described method of striking a spike or barb from a wire by the successive or repeated action of dies at the place in the wire at which the spike or barb is to project, substantially as described.

CHARLES D. ROGERS.

W'it-nesses:

W. W. SWAN, WV. E. LOMBARD. 

